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author:

黄小云 (黄小云.) [1] | 林娟 (林娟.) [2] | 林小洪 (林小洪.) [3] | 王国增 (王国增.) [4] | 叶秀云 (叶秀云.) [5]

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Abstract:

以自制木聚糖为初筛培养基的唯一碳源,从多个海洋来源样品中一共筛到60株有透明圈且形态各异的菌株,摇瓶发酵结果显示,38株具有产木聚糖酶能力,其中B659菌株产酶能力最高,酶活力为525.3 U·mL-1.结合B659菌株的形态特征和16S rDNA序列分析鉴定该菌株属于Bacillus属.对B659菌株进行紫外诱变,筛选得到酶活提高13.9%且稳定遗传的突变菌株G3-17;对G3-17菌株进一步进行微波诱变得到酶活较G3-17菌株高出11.6%且稳定遗传的突变菌株W1-40.对B659菌株和W1-40突变菌株进行发酵试验,72 h时W1-40菌株的酶活力达到645.2 U·mL-1,比B659菌株(517.9 U· mL-1)提高24.6%.

Keyword:

木聚糖酶 海洋微生物 筛选 诱变

Community:

  • [ 1 ] 福州大学生物科学与工程学院,福建省海洋酶工程重点实验室,福建福州350116

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Source :

福州大学学报:自然科学版

ISSN: 1000-2243

CN: 35-1337/N

Year: 2015

Issue: 5

Volume: 0

Page: 715-721

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WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 0

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